CN102168190A - Method for enrichment of vanadium from stone coal mine in a manner of low consumption and high efficiency - Google Patents
Method for enrichment of vanadium from stone coal mine in a manner of low consumption and high efficiency Download PDFInfo
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- CN102168190A CN102168190A CN2010106027705A CN201010602770A CN102168190A CN 102168190 A CN102168190 A CN 102168190A CN 2010106027705 A CN2010106027705 A CN 2010106027705A CN 201010602770 A CN201010602770 A CN 201010602770A CN 102168190 A CN102168190 A CN 102168190A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a method for enrichment of vanadium from stone coal mines in a manner of low consumption and high efficiency The method comprises the steps of crushing the stone coal mines, grinding before flotation, first selecting coal and de-carboning to pick out carbon concentrate and then pick out vanadium concentrate, wherein grinding fineness of the stone coal mines is -200 meshes, mass content is more than 70% and mass concentration of flotation pulp is 35 to 45%; preparing water gas by a gas generator, with the carbon concentrate being a raw material; supplying heat by the heat generated from combustion of the water gas to the vanadium concentrate for vanadium leaching; and mixing residues from the combustion of the carbon concentrate for preparing the water gas with flotation vanadium concentrate to leach the vanadium. By utilizing the carbon concentrate from the flotation of original mines to generate the water gas for heat supplying, the method has the advantages of environment protection, low energy consumption, high recovery rate, etc.
Description
Technical field
The invention belongs to the technical field of flotation, leaching vanadium, is the processing method that a kind of bone coal extracts vanadium, relates to the flotation decarburization, the floating and enriching vanadium, and the leaching of vanadium belongs to rare metal comprehensive reutilization field.
Background technology
Vanadium is a kind of dystectic rare metal, is the indispensable resource that the mankind depend on for existence and development, and the title of metal " VITAMIN " is arranged.In the iron and steel application facet, the vanadium of China about 90% is used for Iron And Steel Industry, and vanadium is mixed in steel, can make vanadium steel.Vanadium steel is tightr than ordinary steel structure, and toughness, elasticity and physical strength are higher; In the alloy application facet, the important alloy Ti-6Al-4V that the vanadium titanium is formed is used for the hydrofoil of aircraft engine, aerospace cabin boat's beam frame, guided missile, warship and introduces device, rocket engine shell etc.; In addition, vanadium is done anodal in battery with the oxide form of vanadium, and the advantage of vanadium cell is to use safely at normal temperatures, electrolytic solution and battery long service life, low cost of manufacture; In addition, vanadium also has purposes more widely at aspects such as chemical industry, glass, pottery, medical science.Therefore, vanadium is China's important strategic resource.
Bone coal is the navajoite resource of a kind of uniqueness of China, and extracting Vanadium Pentoxide in FLAKES from bone coal is the important component part that bone coal utilizes, and in recent years, has done a large amount of process for extracting vanadium from stone coal both at home and abroad.A series of problems such as the extracting vanadium from stone coal of China mainly adopts flat kiln sodium roasting water logging acid precipitation technical process, though obtain favorable economic benefit and social benefit, exists to be simply equipped, and technology is backward, total yield is low, production cost is high, environmental pollution is serious.
The present invention at first adopts the method for flotation to obtain carbon ore deposit and vanadium concentrate.Water-gas is made by coal-gas producer in the carbon ore deposit, and the carbon slag is sneaked in the vanadium concentrate, as the raw material that leaches.The heat that leaches can be obtained by the water-gas burning.This method has environmental friendliness, low, the rate of recovery advantages of higher of energy consumption.
Summary of the invention
Technical problem to be solved by this invention provide a kind of technical process simple, effective, pollute few from the bone coal ore deposit method of low-consumption high-efficiency enrichment vanadium.
In order to solve the problems of the technologies described above, provided by the invention from the bone coal ore deposit method of low-consumption high-efficiency enrichment vanadium, the steps include:
A, with the fragmentation of bone coal ore deposit, carry out flotation behind the ore grinding, first coal separation de-carbon is selected the carbon ore deposit, selects the vanadium concentrate again, the grinding fineness in bone coal ore deposit is that-200 order quality account for more than 70%, the mass concentration of flotation pulp is 35%-45%;
B, be raw material, prepare water-gas with coal-gas producer with the carbon ore deposit;
The heat that c, water gas-fired produce leaches the vanadium heat supply to the vanadium concentrate;
D, the residue behind the carbon ore deposit burning preparation water-gas is sneaked in the flotation vanadium concentrate, leach vanadium.
The used collecting agent of flotation carbon is an amine among the above-mentioned step a, and the used collecting agent of flotation vanadium is the phosphine class.
The leaching agent that the vanadium concentrate leaches among the above-mentioned step c is a sulfuric acid, and leaching agent is a Sodium Silicofluoride, and the temperature of leaching is 85 °～95 °.
Adopt the method for low-consumption high-efficiency enrichment vanadium from the bone coal ore deposit of technique scheme, at first adopt the method for flotation to obtain carbon ore deposit and vanadium concentrate, water-gas is made by coal-gas producer in the carbon ore deposit, and the carbon slag is sneaked in the vanadium concentrate, together as the raw material that leaches.Present method is considered in this bone coal ore deposit and is contained a large amount of carbon, because the specific surface area of carbon is very big, surface energy is very high, directly leach the consumption that can increase medicament,, use the method enrichment vanadium of flotation simultaneously so adopt the flotation decarburization, vanadium concentrate after the flotation is leached, and water-gas can be made in the carbon ore deposit that selects in priority floating, as the thermal source that leaches usefulness.Also have certain vanadium in the carbon slag after the burning of carbon ore deposit, thus the carbon slag is sneaked in the vanadium concentrate, as the raw material that leaches.Advantages such as this method has the energy consumption of minimizing and dosing, and technical process is simple, effective, pollution is few.
In sum, the present invention be a kind of technical process simple, effective, pollute few from the bone coal ore deposit method of low-consumption high-efficiency enrichment vanadium.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, the method for low-consumption high-efficiency enrichment vanadium from the bone coal ore deposit that this is bright to provide the steps include:
A, with the fragmentation of bone coal ore deposit, carry out flotation behind the ore grinding, elder generation's coal separation de-carbon is selected the carbon ore deposit, select the vanadium concentrate again, the grinding fineness in bone coal ore deposit is that-200 order quality account for more than 70%, the mass concentration of flotation pulp is 35%-45%, and the used collecting agent of flotation carbon is an amine, and the used collecting agent of flotation vanadium is the phosphine class;
B, be raw material, prepare water-gas with coal-gas producer with the carbon ore deposit;
The heat that c, water gas-fired produce leaches the vanadium heat supply to the vanadium concentrate, and the leaching agent that the vanadium concentrate leaches is a sulfuric acid, and leaching agent is a Sodium Silicofluoride, and the temperature of leaching is 85 °～95 °;
D, the residue behind the carbon ore deposit burning preparation water-gas is sneaked in the flotation vanadium concentrate, leach vanadium.
Embodiment 1:
Adopt the present invention, bone coal ore deposit, Sichuan is tested.At first fragmentation is carried out in the bone coal ore deposit, ore grinding, the grinding fineness in bone coal ore deposit are that-200 order quality account for more than 70%, and pulp density is controlled at 35%-45%, carry out flotation at normal temperatures, obtain carbon ore deposit and vanadium concentrate.Water-gas is made in the carbon ore deposit that flotation obtains, carbon slag after vanadium concentrate and the burning of carbon ore deposit leaches, the heat that is produced by the water-gas burning provides leaching required heat, the rate of recovery of final flotation vanadium reaches 91.03%, leaching yield can reach 90.35%, can the total rate of recovery of this ore deposit vanadium reach 82.24%.Concrete index is as follows:
Bone coal ore deposit, Sichuan flotation results
Claims (3)
1. the method for a low-consumption high-efficiency enrichment vanadium from the bone coal ore deposit is characterized in that: the steps include:
A, with the fragmentation of bone coal ore deposit, carry out flotation behind the ore grinding, first coal separation de-carbon is selected the carbon ore deposit, selects the vanadium concentrate again, the grinding fineness in bone coal ore deposit is that-200 order quality account for more than 70%, the mass concentration of flotation pulp is 35%-45%;
B, be raw material, prepare water-gas with coal-gas producer with the carbon ore deposit;
The heat that c, water gas-fired produce leaches the vanadium heat supply to the vanadium concentrate;
D, the residue behind the carbon ore deposit burning preparation water-gas is sneaked in the flotation vanadium concentrate, leach vanadium.
2. according to claim 1 from the bone coal ore deposit method of low-consumption high-efficiency enrichment vanadium, it is characterized in that: the used collecting agent of flotation carbon is an amine among the above-mentioned step a, the used collecting agent of flotation vanadium is the phosphine class.
3. according to claim 1 and 2 from the bone coal ore deposit method of low-consumption high-efficiency enrichment vanadium, it is characterized in that: the leaching agent that the vanadium concentrate leaches among the above-mentioned step c is a sulfuric acid, and leaching agent is a Sodium Silicofluoride, and the temperature of leaching is 85 °～95 °.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826588A (en) * | 2012-09-25 | 2012-12-19 | 四川巨宏科技有限公司 | Method for producing high-purity nanometer zinc oxide by using ammonia process decarburization of steel plant dust |
| CN102826586A (en) * | 2012-09-25 | 2012-12-19 | 四川巨宏科技有限公司 | Method for producing high purity nanometer zinc oxide by using steel plant dust |
| CN102826591A (en) * | 2012-09-25 | 2012-12-19 | 四川巨宏科技有限公司 | Method for producing high purity nanometer zinc oxide by using electrolytic zinc acid leaching slag |
| CN102828033A (en) * | 2012-09-25 | 2012-12-19 | 四川巨宏科技有限公司 | Method for recycling electrolytic zinc acid leaching slag |
| CN102826589A (en) * | 2012-09-25 | 2012-12-19 | 四川巨宏科技有限公司 | Method for producing high purity nanometer zinc oxide by using ammonia process of steel plant dust |
| CN102838158A (en) * | 2012-09-25 | 2012-12-26 | 四川巨宏科技有限公司 | Method for producing high-purity nano-zinc oxide by ammonia decarburization of electrolytic zinc acid-leaching residues |
| CN102839282A (en) * | 2012-09-25 | 2012-12-26 | 四川巨宏科技有限公司 | Method for producing high-purity nano zinc oxide from low-grade zinc oxide ores |
| CN102849782A (en) * | 2012-09-25 | 2013-01-02 | 四川巨宏科技有限公司 | Method for producing high-purity zinc oxide by steel mill smoke dust ash ammonia method decarburization |
| CN102849781A (en) * | 2012-09-25 | 2013-01-02 | 四川巨宏科技有限公司 | Method for producing high-purity zinc oxide through fume ash in steel works |
| CN102849783A (en) * | 2012-09-25 | 2013-01-02 | 四川巨宏科技有限公司 | Production method of high-purity nanometer zinc oxide from low-grade zinc oxide ore by ammonia decarbonization |
| CN102863009A (en) * | 2012-09-25 | 2013-01-09 | 四川巨宏科技有限公司 | Method of using low-grade zinc oxide ore to produce high-purity zinc oxide |
| WO2014047760A1 (en) * | 2012-09-25 | 2014-04-03 | 四川巨宏科技有限公司 | Method for producing high-purity nanometer zinc oxide from electrolytic zinc acid-leaching residues by ammonia decarburization |
| CN104138806A (en) * | 2014-06-10 | 2014-11-12 | 中南大学 | Method for extracting V2O5 and carbon from low-carbon stone coal mine |
| US9528170B2 (en) | 2012-09-25 | 2016-12-27 | Sichuan Xinhong Technology Co., Ltd | Method for producing a high-purity nanometer zinc oxide from steel plant smoke and dust by ammonia decarburization |
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| CN102863009A (en) * | 2012-09-25 | 2013-01-09 | 四川巨宏科技有限公司 | Method of using low-grade zinc oxide ore to produce high-purity zinc oxide |
| US9528170B2 (en) | 2012-09-25 | 2016-12-27 | Sichuan Xinhong Technology Co., Ltd | Method for producing a high-purity nanometer zinc oxide from steel plant smoke and dust by ammonia decarburization |
| CN102826588A (en) * | 2012-09-25 | 2012-12-19 | 四川巨宏科技有限公司 | Method for producing high-purity nanometer zinc oxide by using ammonia process decarburization of steel plant dust |
| CN102828033A (en) * | 2012-09-25 | 2012-12-19 | 四川巨宏科技有限公司 | Method for recycling electrolytic zinc acid leaching slag |
| CN102826589A (en) * | 2012-09-25 | 2012-12-19 | 四川巨宏科技有限公司 | Method for producing high purity nanometer zinc oxide by using ammonia process of steel plant dust |
| CN102838158A (en) * | 2012-09-25 | 2012-12-26 | 四川巨宏科技有限公司 | Method for producing high-purity nano-zinc oxide by ammonia decarburization of electrolytic zinc acid-leaching residues |
| CN102839282A (en) * | 2012-09-25 | 2012-12-26 | 四川巨宏科技有限公司 | Method for producing high-purity nano zinc oxide from low-grade zinc oxide ores |
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| CN102826591A (en) * | 2012-09-25 | 2012-12-19 | 四川巨宏科技有限公司 | Method for producing high purity nanometer zinc oxide by using electrolytic zinc acid leaching slag |
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| CN102826591B (en) * | 2012-09-25 | 2014-06-18 | 四川锌鸿科技有限公司 | Method for producing high purity nanometer zinc oxide by using electrolytic zinc acid leaching slag |
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| CN102849782B (en) * | 2012-09-25 | 2014-06-18 | 四川锌鸿科技有限公司 | Method for producing high-purity zinc oxide by steel mill smoke dust ash ammonia method decarburization |
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Application publication date: 20110831 |